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Spatial Distribution of Pulsed Environmental Flows

Explore the spatial distribution of pulsed environmental flows for water resources management using GIS techniques. Learn how to input surface and groundwater flows into the RAPID model, visualize flow values on maps, and compare model output with observed data.

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Spatial Distribution of Pulsed Environmental Flows

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  1. Spatial Distribution of Pulsed Environmental Flows GIS in Water Resources, 2011 Alison Wood

  2. Environmental Flow RegimeFlows to Keep Rivers Healthy www.tceq.com

  3. TCEQ’s NeedWater Withdrawals Not Near Gages

  4. Data Sources TCEQ Rights Points USGS Gages RAPID Model Output

  5. Bringing the Data Together

  6. RAPID Modelcreated by Cédric David • Routing Application for Parallel computatIonof Discharge • Input: surface and groundwater flows • Output: flow and volume of water throughout river network • Output in netCDF format http://www.geo.utexas.edu/scientist/david/rapid.htm

  7. Mapping RAPID OutputCreate a Table from Data http://www.geo.utexas.edu/scientist/david/files/RAPID_in_ArcGIS.pdf

  8. Mapping RAPID OutputChoose a Time-Step http://www.geo.utexas.edu/scientist/david/files/RAPID_in_ArcGIS.pdf

  9. Mapping RAPID OutputJoin Table to Flowline Layer http://www.geo.utexas.edu/scientist/david/files/RAPID_in_ArcGIS.pdf

  10. Mapping RAPID OutputResult: Map with Flow Values

  11. Mapping RAPID OutputAttribute: Qout = Flow

  12. RAPID Output – HydrographModel Flow Over Time

  13. USGS Gage Flow– HydrographMeasured Flow Over Time HydroExcel: http://his.cuahsi.org/hydroexcel.html

  14. Locations of Hydrographs: Gage 08173900 and Reach 1622713

  15. TCEQ’s NeedWater Withdrawals Not Near Gages

  16. Next Steps:Collect Data, Compare, Correlate • RAPID hydrographs for all chosen reaches • USGS hydrographs for all chosen gages • Compare model output with observed data • Correlate reaches with gages that reflect flows

  17. Until Real-Time Flow Maps(Example with Historical Data)

  18. Questions?

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